hantou Su'ai Subsea Tunnel Project is designed for the extension and upgrading of the city. It is the most challenging subsea project of its kind in China in terms of construction. The geology along the tunnel is mainly medium-coarse sand, muddy soil, mud, muddy sand mulling, granite. Accordingly, CREG customized for the project a 15.03m diameter slurry TBM which consists of integrated design of ultra-high pressure sustaining system, accessible cutterhead, spherical main drive and two-circuit air pressure control.

http://en.crectbm.com/detail/8534.html